Letter envelope



J. M. Fox

LETTER ENVELOPE Filed Aug- 1925 Sept. 1, 1925.

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PW Sept. '1, 1925.

UNITED STATES JAMES MARTIN FOX, 01 MADISON, WISCONSIN.

LETTER ENVELOPE.

Application filed August 6, 1923. Serial No. 658,145.

To aZl-wiwmitmwy concern Be it knownithat I, JAMES MARTIN Fox, a citizen of the United States, residing at 727 West Main Street, -Madison, in the 5 county of Dane and the State of Wisconsin,

have certain new and useful Improvements in Letter Envelopes, of which the following is a specification.

This invention relates to letter envelopes in pa, icularly of the repeater type. of my invention is to provide an envelope of the repeater variety, such as railways use in their business, which will lasting and useful for months or 11 years whereas they now last only for To accomplish this object, two horizontal slits of any desired length and of any desired distance apart are inserted at or M near the center ofthe front wall of the envelope; into and through which slits an address card of stiff paper or light whoa-rd may [be inserted; having the 1 -3 reversible address card; thus holding in secure position the auxiliary address card upon which the addresses on each side of the card are to written. WVhenever it is 3. desired to a new and different address a new address card-may be used on which to write it and the eendr'inserted through the slits adapted to greeeive said card as described. The .length'of'the auxiliary address card will be about the same as the width of the envelopeand the width of the card about,

the the. length of the slits in the front will of the envelope adapted to receive 49 the card,

It will "readily understood that by this device a repeater envelope will be prowhich may pass back and forth between 'the partiesv and destinations shown on the reversible sides of the auxiliary adspace provided for the address has been I advantages and usefulness of my device will be further made clear to the un- I I the following detailed de and drawings with reference .ion of the front wall of the en velope between the slits located behind the numerals, which become a part of this specification and in which-q Figure. 1 is a front view of the envelope with the address card in position and exposing one address to view.

Figure 2 is a front view of the envelope without the address card. Figure 3 shows one side of the reversible address card.

Fig. 4 is a sectional view on the line 44 of Fig. 1.

The application of my device is made by inserting the reversible auxiliary address card 5, inside the front wall 1, of the envelope, down through the top slit 2, over and across the strap 3, thence inside the envelope again through the lower slit 2, and down until said address card 5, lodges at the lower inside edge 4, of the envelope. In this position the lower end and the upper end of the address card 5, are located against the inside edges 4, of the envelope and that with the additional security provided by the strap 3, prevents said address card 5, from becoming dislodged until withdrawn for the purpose of reversing the sides or ends of said auxiliary address card 5, to show a different address between the slits 2, over the strap 3.

lVhat I claim as a new and useful improvement is:

1. The combination of an envelope having a pair of slits formin a strap, with an address card adapted to ear different addresses on different portions thereof, said card adapted to be inserted into said envelope and over the strap to selectively expose an address-hearin portion on the outside of the envelope, t e len th ofcard being equal to the width 0 the envelope whereby the card is held in position.

2. The combination of an envelope having two slits parallel to each other and to two opposite edges of the envelope with an address card adapted to bear difierent'addresses thereon on different portions thereof, said card adapted to be'inserted in said envelope and through saidslits with an ad-' dress-bearing portion selectively exposed to view on the outside of the envelope between said slits, the length of the card being approximately equal to the width of the envelople so that the card is held in position by t esaid opposite edges of the envelope. To which I si my name. AMES MARTIN FOX. 

